We often blame our phone’s glare for finding it difficult to fall asleep. But our expert thinks things are more complicated
Struggling to nod off? It’s easy to blame the phone that’s just inches from your face and the never-ending newsfeed your thumb is busy scrolling as you lie in bed. But the idea that it’s the blue light emitted by your smartphone that’s disturbing you isn’t quite right.
While blue or short-wavelength light (such as daylight or that emitted by tech) does affect our circadian rhythm, things are less clear cut than we often think.
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